Costco Credit Card Spend is a one-time financials series on Kalshi, with markets like “Will Costco Credit Card Spend for September 2026 be above 112 ?”. The Kalshi Eye archive lists 29 of its markets and has 13 days of daily Parquet files from October 12, 2026 to October 24, 2026 (10 MB), with every order book change and trade.

Venue: Kalshi, series KXCOSTCC
Category: Financials, one-time
Markets: 29 (17 settled, 12 open)
Files: 13 days, October 12, 2026 to October 24, 2026, 10 MB, 809,957 rows
Datasets: Order book (L2, incremental), Order book snapshots (top 10, 1 second), Top of book (every change), Top of book (1-minute bars), Trades

Open Costco Credit Card Spend in Markets to see every day and market, then export the days you need. Free sample files of each dataset are on the Kalshi data page.

Reading the files

Every KXCOSTCC trade on October 24, 2026, in DuckDB:

SELECT ts_recv, ticker, yes_price, size, taker_side
FROM 'kalshieye-data/trades/date=2026-10-24/series=KXCOSTCC/trades-KXCOSTCC-2026-10-24.parquet'
ORDER BY ts_recv;

To test a strategy on this series, see How to backtest Kalshi markets.

Related Kalshi series

Starbucks Credit Card Spend (KXSBUXCC): 41 markets, 13 days of files
Home Depot Credit Card Spend (KXHDCC): 35 markets, 13 days of files
Urban Outfitters Credit Card Spend (KXURBNCC): 33 markets, 12 days of files
Abercrombie & Fitch Credit Card Spend (KXANFCC): 33 markets, 13 days of files
Dollar General Credit Card Spend (KXDGCC): 30 markets, 13 days of files
Dick's Sporting Goods Credit Card Spend (KXDKSCC): 30 markets, 13 days of files

Figures through October 24, 2026. All Kalshi series with pages are listed on Kalshi series.